<p></p>
<p><a class="user-mention" data-hovercard-type="user" data-hovercard-url="/users/techee/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/techee">@techee</a> you specify the prefix when you initialize the build directory, see <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="830890432" data-permission-text="Title is private" data-url="https://github.com/geany/geany/issues/2761" data-hovercard-type="pull_request" data-hovercard-url="/geany/geany/pull/2761/hovercard?comment_id=809698447&comment_type=issue_comment" href="https://github.com/geany/geany/pull/2761#issuecomment-809698447">#2761 (comment)</a></p>
<p>The error looks like g++ is using the wrong standard, <a class="user-mention" data-hovercard-type="user" data-hovercard-url="/users/kugel-/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/kugel-">@kugel-</a> hasn't specified it and I guess all the rest of us are using a g++ that defaults to at least c++11.  In fact the new Julia lexer requires c++17 so you will need a compiler capable of that (see recent changes to travis distro version on geany-plugins to get new enough compilers).</p>

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